baber/WOPTO huggingface dataset:
Patent GB-1102916-A (GB)
Title: Process for the recovery of methionine or a salt thereof
IPC: C01C1/24
Filed: 1965-10-01
Abstract: Methionine or a salt thereof is recovered from an aqueous solution which additionally contains ammonium sulphate by liquid-liquid extraction with ethanol to yield an aqueous ethanol-rich layer and an ammonium sulphate rich layer, the methionine or salt thereof being recovered from the aqueous ethanol-rich layer, e.g. by crystallization.  Extraction is suitably effected above 8 DEG  C., preferably 30 DEG  C., and employing continuous solvent extraction.
Patent GB-1020434-A (GB)
Title: Improvements in or relating to vehicle brakes
IPC: F16D65/22
Filed: 1963-10-24
Abstract: 1,020,434. Brakes. H. TENES, E. A. TENES, and M. TAUSEND, [trading as ALFRED TENES MASCHINEN-UND ARMATURENFABRIK KOMM. GES.]. Oct. 24, 1963 [Oct. 30, 1962], No. 41998/63. Heading F2E. An internal expanding shoe brake has wheel brake actuators which are operative on the ends of spring returned brake shoes and which are movable relatively to the back-plate wherein the casings of two wheel brake actuators operative on the four brake shoe ends are guided in supports disposed on the back-plate. The brake actuator comprises a casing 18 one end of which abuts plate 5, the other end of which is guided in a support 8 and is spring-loaded. The casing contains a piston 24 operated by fluid pressure or by wedges 40 controlled by the hand brake. The piston receives a sleeve 26 threadedly engaging a slack adjusting pin 29. The outer surface of the sleeve carries a helical thread 30 engageable by ratchet teeth 28 secured to the casing 18. On operation of the brake, the ratchet teeth ride over the thread as the sleeve is forced from the casing and on return the sleeve is rotated to compensate for wear. The pin 29 and casing extension 21 contain slots which engage end parts of the brake shoes to prevent rotation of the pin and casing. The brake acts as a leading shoe brake in both directions of drum rotation.
Patent GB-1485118-A (GB)
Title: Electrical connectors
IPC: H01R13/512
Filed: 1974-11-15
Abstract: 1485118 Connector bodies HAFFENDENRICHBOROUGH Ltd 15 Nov 1974 [6 Sept 1973] 42056/73 Heading H2E An electrical conneutor comprises a base member and a cover member, one of the members being of a moulded elastomer and having a securing element with a shank and a non- circular head secured in a similarly shaped recess, the shank, in use, locking with a cooperating element to secure the base and cover together. The cover 1 of a plug is moulded from rubber with a through-hole 2 and non-circular counterbore 3. Within the hole and counterbore is a metal or plastics insert comprising a head 4 and shank 5 with a plain or tapped bore 6; the head is non-circular and the insert is secured to the cover by adhesive, welding, riveting or mechanical inter-engagement. The plug base (not shown) has a screw which engages the bore 6. Reference has been directed by the Comptroller to Specification 1,419,824.
Patent GB-1487749-A (GB)
Title: Heat transfer labels
IPC: B41M3/12
Filed: 1974-09-27
Abstract: 1487749 Heat transfers DENNISON MFG CO Ltd 27 Sept 1974 [28 Sept 1973] 42163/74 Heading B6C In a heat transfer comprising a carrier sheet 22, a wax heat-release layer 24, a design layer 28, and a thermoplastic adhesive layer 30, Fig. 1, a primer layer 26 is incorporated between the release layer 24 and the design layer 28, this layer 26 serving as a protective layer when the transfer is applied to a substrate 10, Fig. 2 (not shown). The layer 26 which provides chemical resistance, comprises at least two polymers, one in the form of a matrix, the other as a reinforcement. The bulky matrix phase is preferably a polyester or polyesterurethane resin, e.g. a polyester made from phenylindane dicarboxylic acid and a mixture of glycols, or condensation products of diols or glycols with carboxylic, naphthalic, sebacic or phthalic acids, the reinforcement phase is preferably a rosin ester or a ethylene/vinyl acetate copolymer. The primer and protective layer 26 and the adhesive layer 30 may have the same formulation for adder protection of the transfer after application to the substrate which is generally a PVC container for chemicals.
Patent GB-1469467-A (GB)
Title: Conical-basket dryer centrifuge comprising a washing device
IPC: B04B15/12
Filed: 1974-09-27
Abstract: 1469467 Washing and straining centrifuge FIVES-CAIL BABCOCK 27 Sept 1974 [2 Oct 1973] 42173/74 Heading B1D A straining centrifuge has a washing device for crystals travelling on rotating screen 12. From feed device 40 and 22 a mixture is fed to base of screen 12 and travels upwardly. Filtered liquid is withdrawn through plural grooves 16 and outlets 14 into chamber 18. Wash water is fed through pipe 54 to a washing rotor 20 and 46 is thrown through gaps 57 and 48, grooves 56 and small section passage 58 to chamber 60 where it passes through annular screen and washes dry crystals ascending between rotor and screen 12. This second cleaner grade of filtered liquid passes into groove 16 and the upper of outlets 14 to chamber 70. Dry crystals overflow top of screen. Space 30 contains liquid into which flange 38 dips and excludes air ingress. Wash rotor parts 20, 46 etc may be keyed to rotating screen or driven by friction of products on its periphery. In Fig. 3 (not shown) the wash rotor channels through which the wash water passes are modified.
Patent GB-980562-A (GB)
Title: Automatic skittle-alley mechanism
IPC: A63D5/08
Filed: 1962-11-08
Abstract: 980,562. Skittle alleys. A. SCHMID. Nov. 8, 1962 [Nov. 8, 1961], No. 42278/62. Heading A6D. The skittles 1 of an automatically-operated skittle alley are each suspended from a cord 2 trained over respective pulleys 3 and 5 and all connected to a winding drum 6. The pulleys 5 are each mounted in a respective U-shaped bracket 9 fixed to a shaft 10, the shaft being secured between two parallel endless chains 11. The endless chains are each driven from a motor 20 which is started by a switch (not shown) operated by the fallen pins or by the ball, and as the shaft 10 traces out the circuit defined by the chains 11, the skittles 1 are raised and lowered. The suspension member 41 of a slide 40 obstructing the entrance to the ball reservoir may be disposed so as to lie in the path of the shaft 10, the slide then being raised and lowered by the moving shaft. The winding drum 6 is mounted for movement about a pivot 7 against the action of spring 8, to safeguard the cords 2 in the event of the skittles becoming caught when knocked over.
Patent GB-958846-A (GB)
Title: Improvements relating to sound recording or reproducing apparatus
Inventor: ALDRIDGE PETER JOHN
IPC: G11B15/29
Filed: 1961-12-05
Abstract: 958,846. Pinch-roller mechanisms. MAGNOVOX ELECTRONICS CO. Ltd. Nov. 30, 1962 [Dec. 5, 1961], No. 43523/61. Heading G5R. A pinch roller 14 spins freely on a pin 32 and is carried on an arm 34, hinged with torsional freedom by a nylon blade 36 riveted to the arm and to a bracket 35. This enables the roller 14 to bed evenly over the full width of the tape. A safety-pin spring 38 attached to the arm 34 at 40 and to the frames of the machine at 41 has an over-centre action which biases the pinch-roller into driving engagement or snaps it out of engagement for tape loading or speed-changing according to the arrangement of Specification 958, 845. An adjustable pin 44, lock-nutted through the arm 34 bears at its lower end on the deck 1 and allows the height of the pinch-roller above the deck to be adjusted to the tape-height, the blade 36 accommodating any slight misalignment resulting from the adjustment.
Patent GB-1121761-A (GB)
Title: Improvements in or relating to hydrostatic journal bearings
IPC: F16C32/06
Filed: 1963-11-04
Abstract: 1,121,761. Bearings. SERVOMATIC HYDRAULICS (GUILDFORD) Ltd., and N. D. STEPHENSON. 4 Feb.. 1965 [4 Nov., 1963], No. 43525/63. Heading F2A. In a hydrostatic bearing a bush 10 has circumferentially spaced liquid exhaust grooves 12 defining helical bearing pads 14, each pad having a recess 15 to which liquid is supplied through a restrictor. A passage 16 from the restrictor opens at one end of each recess so that the liquid flow along the recess has a component in the direction of rotation of the shaft. At one end exhaust passages 12 open into an annular groove 13. The restrictors comprise an annular groove in sleeve 11 containing islands 18 with passages 17 through them, liquid from supply passage 20 entering the groove, passing over islands 18 and through passages 17 to passages 16.
Patent GB-1197026-A (GB)
Title: Improvements in or relating to Telephone Systems
IPC: H04J3/00
Filed: 1968-09-13
Abstract: 1,197,026. Telephone exchange systems; twoway transmission. SIEMENS A.G. 13 Sept., 1968 [14 Sept., 1967], No. 43558/68. Headings H4K and H4R. A two-wire line 7 between a substation 1 and an exchange 8 is worked as a four wire line by transmitting analogue signals over low pass filters 3 and 9 from the substantion to the exchange and by transmitting pulse code modulated signals over high pass filters 6 and 13 from the exchange to the substation. The analogue signals from a group of lines are multiplexed and pulse code modulated at 11. Pulse code modulated signals from the exchange are changed from 7 bit codes to 11 bit codes in a recoder 15 and are distributed to converters 13 provided for each line. If the bits of each pulse code are distributed uniformly in the multiplex frame each converter 13 comprises a pulse stretcher so that each pulse of the code is suitable for transmission over line 7. If the bits of each pulse code are grouped in a time slot the converters 13 each comprises a store for the code group and pulse generator to reproduce the code stretched over the multiplex frame. The use of an 11 bit code enables the decoder 5 at the substation to be linear and free from the complexities of companding.
Patent GB-1476044-A (GB)
Title: Agent containing organic dicarbonates
IPC: A01N47/06
Filed: 1975-10-24
Abstract: 1476044 Composition containing dicarbonates BAYER AG 24 Oct 1975 [15 Feb 1975] 43762/75 Heading A5E A composition for disinfecting soil and combating plant diseases comprises 85-98% by wt. of organic dicarbonate, e.g. diethyl dicarbonate; 0.1-14.99% by wt of alkylphenyl polyethylene glycol; and 0.01-5% by wt. of halogenoformic acid ester e.g. methyl chloroformate and/or 0.1-5% by wt. of dialkyl carbonate. The compositions have a shelf life of about 2 years and can be diluted with water for use.
Patent GB-1044786-A (GB)
Title: A process for the manufacture of homopolymers and copolymers of isobutylene
IPC: C08F10/14
Filed: 1963-11-06
Abstract: A process for the manufacture of a solid homo-polymer or copolymer of isobutylene wherein isobutylene is homo-polymerized or isobutylene and ethylene or an a -olefin are copolymerized in an inert solvent at a temperature between - 20 DEG  and 50 DEG  C. under atmospheric pressure or a pressure above atmospheric pressure comprises using a catalyst which is obtained by reacting an organic aluminium compound represented by the formula AlRn\X3-n, wherein R stands for an alkyl, aryl or aralkyl radical, X stands for halogen and hydrogen atoms and alkoxy, amino and nitrile radicals and n is 1, 2 or 3, with an oxyhalide of a transition metal of Group IVa, Va or VIa of the Mendeleeff Periodic Table or with stannic chloride.  In the examples isobutylene is homopolymerized in n-heptane with the catalyst combinations Et2AlCl + VOCl3.  Et2AlCl + CrO2Cl2, Et2AlCl + SnCl4, and Et Al + VOCl3, and is copolymerized with propylene using Et3Al + VOCl3.  Polymerization is terminated with hydrochloric acid and the polymer produced is precipitated with methanol.
Patent GB-1282372-A (GB)
Title: Improvements in or relating to control devices for rotary electric switches
IPC: H01H21/24
Filed: 1970-09-15
Abstract: 1282372 Rotary switches SIEMENS AG 15 Sept 1970 [16 Sept 1969] 43960/70 Heading H1N A control device for rotary switches comprising a modular assembly of a rotation-limiter, together with a detent mechanism and/or a spring-return device, in a cylindrical housing through which passes a coaxial switch spindle provided with a flat, has the inner surface of the housing profiled throughout its length and at least said rotation-limiter comprises co-operating members which are adjustably keyed respectively to said profiled surface and to said flat on said spindle so as to provide an adjustable range of rotation and, optionally, a choice of spring- return positions. As shown, casing 1 has axially extending ribs 20 and shaft 10 has two flats 11. Adjustable rotation limiter.-Each of two discs 16 keyed on shaft 10 has a peripheral lug (9, Fig. 4, not shown) which abuts an inwardlyextending lug (8) on a respective annular stop washer 2, itself keyed to housing 1 by tongues 19 selectively located between the ribs 20. Detent mechanism.-A ball 7 carried in a disc 17 keyed, by flats 11 to shaft 10 is urged by compression spring 14 into recesses (22, Fig. 5, not shown) on disc 3 held stationary by a tongue engaged in a groove between ribs 20.  Spring return mechanism.-A torsion spring 12, held pre-stressed in a casing 13 keyed to shaft 10, has projecting ends 6 which engage lugs 5 on respective stationary discs 4 when the shaft is turned to end positions determined by the angular locations of discs 4 in casing 1, the discs having peripheral tongues engaged between ribs 20. The spring 12 is then stressed further to return the shaft 10 to its adjacent previous position on release of the control knob (not shown). The inner cylindrical wall of the housing may be provided alternatively with a single longitudinal groove or projection only. In this case the various elements keyed to the housing must have a plurality of peripheral projections or grooves to provide for adjustment. The detent mechanism may be omitted (Fig. 2, not shown) to provide a switch with a central neutral position and two spring-return positions. The spring return mechanism may be omitted if this function is not required. The length of the housing may be shortened by fitting the torsion spring around the compression spring, or, by suitable spring construction, one spring may provide both the return and detent forces.
Patent GB-931921-A (GB)
Title: Therapeutic compositions intended for the treatment of any hepatic malfunctionings
Inventor: NORDMANN ROGER
IPC: A61K31/195
Filed: 1960-12-22
Abstract: Compositions for oral and parenteral administration e.g. as tablets, pills, granules, drinkable and injectable solutions and useful for treating hepatic malfunctions comprise L-arginine and from 1 to 5 times its weight of DL-malic acid or a salt thereof or L-arginine monohydrochloride and from 2 to 4 times its weight of the malic acid or salt thereof.
Patent GB-1019045-A (GB)
Title: Improvements in or relating to gratings or floor panels
Inventor: KENNEDY CECIL MORRISON
IPC: E04C2/42
Filed: 1963-11-11
Abstract: A grating is made from two sets of inter-crossed members, one set comprising angle section members and the other set comprising flat bars having V-shaped openings.  The angle section members fit into the opening which are deformed to retain them.  Alternatively the flat bars may be replaced by angle section bars or inverted T-shaped bars.
Patent GB-1041440-A (GB)
Title: Improvements in and relating to flow tubes provided with sieve plates
IPC: F15D1/02
Filed: 1964-10-30
Abstract: A flow tube for the passage of liquids in laminar flow, for use for example in continuous polymerization or polycondensation processes is provided with sieve plates extending from wall-to-wall, the sieve plates being spaced from one another at a distance less than one third of the diameter of the flow tube, the characteristic width of the openings in the sieve plates being less than one twentieth of the diameter of the flow tubes, the percentage open area of the sieve plates being at least 65% and the thickness of the sieve plates being less than twice the width of the portions between the openings.  The sieve plates may be of wire gauze and the gauze may have square or rectangular openings; plates with circular openings are also mentioned.  In the drawing (not shown) a vertical reaction column comprises a tube with a plurality of heating jackets 2, 3, 4 and a plurality of square mesh gauzes 5 to 13 within the tube.
Patent GB-444621-A (GB)
Abstract: 444,621. Electric signalling and distant-control systems. AUTOMATIC ELECTRIC CO., Ltd., Strowger Works, WOODLAND, C. R., 45, Warnerville Road, Broadgreen, and RHODES, C., Lodore, Childwall Priory Road, all in Liverpool. Sept. 25, 1934, No. 36099/35. Divided out of 444,698, [Group XXXIX]. Drawings to Specification. [Class 40 (i)] Relates to signalling systems utilizing responding devices of the nature described in Specification 444,698 and comprising a switch in which the contact controlling member performs a movement of rotation always in the same direction in response only to particular series of trains of impulses. The invention consists in a system in which the responding devices are operated over power circuits by trains of alternating current of frequency high compared with the power supply. A number of devices are adapted to respond to the same series of trains and different sets of devices respond to different series. If the devices of a set get out of step, they may be restored by transmission of the complete series to which they are adapted to respond, and in practice, a particular operation may be performed by the transmissions of the complete series, the train significant of the operation being transmitted last. Specifications 431,349, [Group XXXVII], and 435,564 also are referred to.
Patent GB-1503169-A (GB)
Title: Method and apparatus for measuring the frequency and/or period of a periodic signal having random components
IPC: A61B5/344
Filed: 1975-10-28
Abstract: 1503169 Measuring frequency by autocorrelation YOKOGAWA-HEWLETT-PACKARD Ltd 28 Oct 1975 [31 Oct 1974] 44477/75 Heading G1U [Also in Division G4] The frequency of a periodic signal which may be accompanied by random components is determined by auto-correlating the signal over an interval of time controlled to be approximately equal to the measured period by means of a signal derived from the time difference between successive substantial peaks in the auto-correlation function, which difference also indicates the period. In an apparatus for determining fatal heart rate, an ultrasonic Doppler receiver provides the periodic signal which is contaminated by extraneous noise including blood flow signals and mother's heart beat &c. The received signals are pre-processed by fixed band-pass filtering, AGC, and final variable band filtering Fig. 2 (not shown) which is controlled by the measurement results to ensure the auto-correlation function has a suitable shape for the detection of the peaks Figs. 9-10 (not shown). The correlation itself (see Division G4) comprises forming in succesive 5 m.sec periods, a function @, Fig. 5A having 256 values, each function representing a further delay from its predecessor of 5 m.sec, i.e. a maximum delay of 1280m. sec. Since the minimum expected heart rate has a period of 1250 m.sec, there will be at least two "zero-delay" peaks in each 5 m.sec period. The correlation performed is a digital realization of an analogue weighted autocorrelation of the form:- Owing to the exponential weighting, the integral may be carried out over a limited time Teq, after which any further terms are negligible. The autocorrelation signal is passed to a peak detector Fig. 4 (not shown) wherein two pulses are generated in each 5 m.sec periods, the spacing of which corresponds to the signal period. This pulse spacing is converted to an amplitude providing it falls within prescribed limits. The apparatus is monitored and controlled by a system Fig. 10 (not shown) which monitors AGC levels in the preprocessing unit and peak detector, and also monitors the rate of change of the heart rate signal amplitude. Any unsatisfactory levels are used to suppress a recorder indicating the heart rate, inhibit the period-amplitude conversion, and if necessary to control the variable filtering in the preprocessor. The heart rate amplitude signal is also detected for its value relative to two levels corresponding to 80 and 160 beats per minute, the result being used to control the correlation time.
Patent GB-1192690-A (GB)
Title: Improvements in or relating to Wideband Transistor Amplifiers with Gain Control
IPC: H03G3/30
Filed: 1968-09-19
Abstract: 1,192,690. Automatic gain control. SIEMENS A.G. 19 Sept., 1968 [20 Sept., 1967], No. 44571/68. Heading H4R. A multi stage wide band transistor amplifier has attenuation networks N1, N2, N3, each connected between two grounded base transistor amplifier stages and each containing, Fig. 2, two resistors R1, R2 in series between the output of the preceding transistor and the primary of a transformer U whose secondary is connected to the input of the succeeding transistor, with a variable impedance diode circuit connected from the junction of the two resistors to earth. The impedance of the diode circuit is controlled by variation of the current therethrough, the diodes being in series for D.C. and in parallel for A.C. A capacitor C2 and resistor R3 are provided to compensate the lead inductance of the control diodes. The arrangement of the attenuator network is such as to minimize the collector load variation of the preceding transistor, and therefore reduce the variation of its input impedance. The control circuit, RV, Fig. 4, of the complete amplifier is arranged to provide independent variation of the gain of the first stage N1 from maximum attenuation of the stage, e.g. about 9dB, down to OdB gain whereafter the remaining stages are simultaneously controlled to 0dB before all the control stages are controlled simultaneously to maximum gain. Alternative forms of control network are described using a single diode variable impedance Fig. 1 (not shown), or two diodes back to back in series, Fig. 3 (not shown). The interstage coupling network is of the type described in Specification 1,108,326.
Patent GB-1058256-A (GB)
Title: Improvements in and relating to electric motor control
Inventor: WATTERS ALFRED STEPHEN
IPC: H02P7/20
Filed: 1962-11-26
Abstract: 1,058,256. Control of motors ASSOCIATED ELECTRICAL INDUSTRIES Ltd. Nov. 1, 1963 [Nov. 26, 1962], No. 44636/62. Heading H2J. [Also in Division G3] A screw-down motor for a rolling mill is controlled by a circuit supplied from D.C. terminals T1, T2. For normal drive control, terminal T3 is connected to terminal T1 through resistor R1 and amplifier AM, the voltage applied to terminals T1, T2, representing the difference between a reference voltage across terminals T3, T5, and a voltage derived from motor-driven tachometer generator TG. For inching operation, change-over switch SW1 is actuated to close contacts C2, C2<SP>11</SP>, and SW2. Downward movement is provided by closing push-button PD to energize relay RLD having self-holding contacts RLD<SP>1</SP> and contacts RLD<SP>11</SP> which introduce a reduced reference voltage from potentiometer PD2 for comparison with the tachometer voltage. When the voltage of the tachometer generator reaches a predetermined value, relay VSR closes contact VSR<SP>1</SP>, the relay being retained by contact RL1<SP>1</SP> of relay RL1. Brake coil BVS is energized to decelerate the motor, and, after a time delay, relay RLA closes contacts RLA<SP>1</SP> to de-energize the motor. After a further time delay, relay RLR opens contacts RLR<SP>1</SP>, RLR<SP>11</SP>, to reset the circuit. The relay VSR may be responsive to the time integral of the tachometer voltage so as to initiate braking operation after a predetermined movement has occurred. Alternatively, a photo-electric or magnetic transducer may be associated with a counting circuit which introduces control action after a predetermined count.